Aluminum extrusion is a plastic processing method of applying external force to the metal blank placed in the container (extrusion cylinder) to make it flow out of the specific die hole and obtain the required section shape and size.
2. Composition of aluminum profile extruder
Aluminum extrusion machine is composed of frame, front column frame, swelling column, extrusion cylinder, hydraulic system under electric control, and equipped with die seat, thimble, scale plate, skateboard and so on.
3. Classification of aluminum extrusion methods
According to the aluminum extrusion cylinder metal species, stress and strain state, aluminum extrusion direction, smooth state, extrusion temperature, extrusion speed, working mould varieties or structure, the shape of blank or number, product type or number of different, can be divided into positive extrusion method, backward extrusion method, (containing plane strain extrusion, axisymmetric extrusion deformation, general three-dimensional deformation extrusion) lateral extrusion method, glass smooth extrusion method, hydrostatic extrusion method, continuous extrusion method, etc.
4. Forward hot deformation extrusion
Most of the hot deformation aluminum profile production enterprises adopt the forward hot deformation extrusion method to obtain the aluminum with the required cross-section shape by the specific die (flat die, cone die, shunt die).
The forward extrusion process is simple, the equipment requirements are not high, the metal deformation can be high, the production range is wide, the aluminum performance is controllable, the production flexibility is large, the mold is easy to protect and repair.
Defect is conflict with the aluminum extrusion cylinder appearance, strong extrusion than large energy consumption, the conflict is easy to make within the cylinder ingot heating add profiles of instability, to promote the efficiency of damage to the finished product, limit the aluminium and aluminium alloy extrusion speed, accelerated wear and service life of the extrusion die, uneven products before and after the organization performance.